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Showing posts from June, 2021

STP & ETP

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  STP     Sewage treatment platn (residential & commercial) ETP     Effluent treatment plant (industry) COD     Chemical oxygen demand (soluble & insoluble organic compound) (2hr to 3hr) (mg/l) BOD     Biochemical oxygen demand (organic compound) (3days to 5days) (mg/l) KEY POINTS: Outlet of STP 50mg/l Biproduct of anaerobic digestion is H2S & NH3 To reduce stink smell use ozone 
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WATER HEATER

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 WATER HEATER THE BASIC COMPONENT PRESENT IN WATER HEATER ARE: Thermostat (Auto cut off) 90'C Thermostat (Auto cut off & cut in) 25'C - 75'C Heating Element (2 kW) Power ON Lamp (Red) Heating Lamp (Green)
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AIR CONDITIONER

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 AIR CONDITIONER The major component present in the Air Conditioner are: Evaporator Coil Condesor Coil PCB unit Room Sensor Coil Sensor Blower Fan Compressor Condensor Fan Dual Start Capacitor Relay Pressure Switch Example circuit diagram of DAIKIN split AC
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REFRIGERATOR

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REFRIGERATOR The major components present in refrigerator circuit are: Thermostat Push Button Switch Lamp Start Relay Compressor OLP 
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INDUCTION STOVE

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 INDUCTION STOVE The major component present in the induction stove are: Bridge Rectifier Capacitor  IGBT NTC Thermistor Resistor Metal Oxide Varistor
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